{ "ocl_version": "0.1.0", "name": "Col de la Galerie from Sill\u00e9-le-Guillaume", "slug": "col-de-la-galerie-from-sille-le-guillaume", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 7.635616215902985, "diagnostic": true, "flags": [], "start_distance_m": 926.0, "end_distance_m": 928.0, "start_elevation_m": 214.84294666402286, "end_elevation_m": 214.99565898834092, "min_gradient_pct": -5.4313234659488785 }, { "window_m": 3.0, "max_gradient_pct": 7.285469477493696, "diagnostic": true, "flags": [], "start_distance_m": 2634.0, "end_distance_m": 2637.0, "start_elevation_m": 240.55219689385484, "end_elevation_m": 240.77076097817965, "min_gradient_pct": -5.168459534103438 }, { "window_m": 5.0, "max_gradient_pct": 6.41295119057304, "diagnostic": false, "flags": [], "start_distance_m": 1519.0, "end_distance_m": 1524.0, "start_elevation_m": 241.51476146457804, "end_elevation_m": 241.8354090241067, "min_gradient_pct": -4.46617909979409 }, { "window_m": 10.0, "max_gradient_pct": 6.000244544738393, "diagnostic": false, "flags": [], "start_distance_m": 1521.0, "end_distance_m": 1531.0, "start_elevation_m": 241.63898698466494, "end_elevation_m": 242.23901143913878, "min_gradient_pct": -3.78934059625891 }, { "window_m": 20.0, "max_gradient_pct": 5.7194620613505265, "diagnostic": false, "flags": [], "start_distance_m": 1519.0, "end_distance_m": 1539.0, "start_elevation_m": 241.51476146457804, "end_elevation_m": 242.65865387684815, "min_gradient_pct": -3.534025375735723 }, { "window_m": 25.0, "max_gradient_pct": 5.635923106308383, "diagnostic": false, "flags": [], "start_distance_m": 1512.0, "end_distance_m": 1537.0, "start_elevation_m": 241.15019001471595, "end_elevation_m": 242.55917079129304, "min_gradient_pct": -3.4245306045363577 }, { "window_m": 50.0, "max_gradient_pct": 5.531582226097498, "diagnostic": false, "flags": [], "start_distance_m": 1490.0, "end_distance_m": 1540.0, "start_elevation_m": 239.94575353757307, "end_elevation_m": 242.71154465062182, "min_gradient_pct": -3.270831735858053 }, { "window_m": 100.0, "max_gradient_pct": 5.336833564551313, "diagnostic": false, "flags": [], "start_distance_m": 1440.0, "end_distance_m": 1540.0, "start_elevation_m": 237.3747110860705, "end_elevation_m": 242.71154465062182, "min_gradient_pct": -3.210855193262887 } ], "shape": { "ascent_concentration": 0.373, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 0.0, "shape_class": "sustained" }, "length_m": 2976.6262978116174, "start_elevation_m": 179.93954616455233, "end_elevation_m": 255.63379296314002, "endpoint_gain_m": 75.6942467985877, "overall_gradient_pct": 2.542954312210346, "accumulated_ascent_m": 90.16791871715634, "window_maxima": { "max_5m": { "gradient_pct": 6.41295119057304, "start_distance_m": 1519.0, "end_distance_m": 1524.0, "midpoint_distance_m": 1521.5, "start_elevation_m": 241.51476146457804, "end_elevation_m": 241.8354090241067, "start_xy": [ 466553.3726600526, 6792231.626393782 ], "end_xy": [ 466552.1209758176, 6792236.467031659 ] }, "max_10m": { "gradient_pct": 6.000244544738393, "start_distance_m": 1521.0, "end_distance_m": 1531.0, "midpoint_distance_m": 1526.0, "start_elevation_m": 241.63898698466494, "end_elevation_m": 242.23901143913878, "start_xy": [ 466552.87403927627, 6792233.563086854 ], "end_xy": [ 466550.3638277474, 6792243.242902868 ] }, "max_20m": { "gradient_pct": 5.7194620613505265, "start_distance_m": 1519.0, "end_distance_m": 1539.0, "midpoint_distance_m": 1529.0, "start_elevation_m": 241.51476146457804, "end_elevation_m": 242.65865387684815, "start_xy": [ 466553.3726600526, 6792231.626393782 ], "end_xy": [ 466547.8303164388, 6792250.830113518 ] }, "max_25m": { "gradient_pct": 5.635923106308383, "start_distance_m": 1512.0, "end_distance_m": 1537.0, "midpoint_distance_m": 1524.5, "start_elevation_m": 241.15019001471595, "end_elevation_m": 242.55917079129304, "start_xy": [ 466554.5334598737, 6792224.723311588 ], "end_xy": [ 466548.47049220855, 6792248.935337811 ] }, "max_50m": { "gradient_pct": 5.531582226097498, "start_distance_m": 1490.0, "end_distance_m": 1540.0, "midpoint_distance_m": 1515.0, "start_elevation_m": 239.94575353757307, "end_elevation_m": 242.71154465062182, "start_xy": [ 466556.37280910084, 6792202.821450739 ], "end_xy": [ 466547.51022855396, 6792251.777501373 ] }, "max_100m": { "gradient_pct": 5.336833564551313, "start_distance_m": 1440.0, "end_distance_m": 1540.0, "midpoint_distance_m": 1490.0, "start_elevation_m": 237.3747110860705, "end_elevation_m": 242.71154465062182, "start_xy": [ 466544.90209312976, 6792154.676228367 ], "end_xy": [ 466547.51022855396, 6792251.777501373 ] } }, "window_minima": { "min_5m": { "gradient_pct": -4.46617909979409, "start_distance_m": 2277.0, "end_distance_m": 2282.0, "midpoint_distance_m": 2279.5, "start_elevation_m": 239.5725413278769, "end_elevation_m": 239.3492323728872, "start_xy": [ 466062.64071323146, 6792799.822611055 ], "end_xy": [ 466059.3025386163, 6792803.545055176 ] }, "min_10m": { "gradient_pct": -3.78934059625891, "start_distance_m": 2278.0, "end_distance_m": 2288.0, "midpoint_distance_m": 2283.0, "start_elevation_m": 239.5504842843118, "end_elevation_m": 239.17155022468592, "start_xy": [ 466061.9730783084, 6792800.5670998795 ], "end_xy": [ 466055.2967290781, 6792808.011988123 ] }, "min_20m": { "gradient_pct": -3.534025375735723, "start_distance_m": 2203.0, "end_distance_m": 2223.0, "midpoint_distance_m": 2213.0, "start_elevation_m": 241.9239108656348, "end_elevation_m": 241.21710579048766, "start_xy": [ 466113.9545052534, 6792746.6182627035 ], "end_xy": [ 466099.09419993585, 6792760.001196925 ] }, "min_25m": { "gradient_pct": -3.4245306045363577, "start_distance_m": 2203.0, "end_distance_m": 2228.0, "midpoint_distance_m": 2215.5, "start_elevation_m": 241.9239108656348, "end_elevation_m": 241.06777821450072, "start_xy": [ 466113.9545052534, 6792746.6182627035 ], "end_xy": [ 466095.5318687645, 6792763.505890525 ] }, "min_50m": { "gradient_pct": -3.270831735858053, "start_distance_m": 2193.0, "end_distance_m": 2243.0, "midpoint_distance_m": 2218.0, "start_elevation_m": 242.22523850636856, "end_elevation_m": 240.58982263843953, "start_xy": [ 466121.5912795859, 6792740.166195382 ], "end_xy": [ 466085.3403006144, 6792774.509991027 ] }, "min_100m": { "gradient_pct": -3.210855193262887, "start_distance_m": 2193.0, "end_distance_m": 2293.0, "midpoint_distance_m": 2243.0, "start_elevation_m": 242.22523850636856, "end_elevation_m": 239.01438331310567, "start_xy": [ 466121.5912795859, 6792740.166195382 ], "end_xy": [ 466051.95855446294, 6792811.734432244 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 7.635616215902985, "start_distance_m": 926.0, "end_distance_m": 928.0, "midpoint_distance_m": 927.0, "start_elevation_m": 214.84294666402286, "end_elevation_m": 214.99565898834092, "start_xy": [ 466498.9885954915, 6791706.767611827 ], "end_xy": [ 466497.9885802261, 6791708.499653821 ] }, "max_3m": { "gradient_pct": 7.285469477493696, "start_distance_m": 2634.0, "end_distance_m": 2637.0, "midpoint_distance_m": 2635.5, "start_elevation_m": 240.55219689385484, "end_elevation_m": 240.77076097817965, "start_xy": [ 465802.8694854869, 6793044.076320016 ], "end_xy": [ 465800.30902088725, 6793045.639656522 ] } }, "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.", "quality_summary": { "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.024, "obstruction_max_height_m": 16.55, "flagged_windows_m": [] }, "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "c9b3ba49b3766035839a1a4ced518ccf9fed0cf5", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:8c94015b54267da4", "python": "3.14.4", "numpy": "2.5.3", "rasterio": "1.5.1", "pyproj": "3.8.0", "laspy": "2.7.0", "shapely": "2.1.2", "pyosmium": "4.3.1", "libosmium": "2.23.1", "gdal": "3.12.4", "proj": "9.8.1", "run_id": "fr-no3", "road_pbf": "block-batch-fr-no3.osm.pbf", "region_key": "france", "crs": "EPSG:2154", "elevation_provider_key": "ign-lidarhd", "tile_index": "wms-grid", "authority": "bdtopo", "registry_pbf": "france-vosges-2026-09-16.osm.pbf", "tile_index_snapshot": "sha256:396cc16291f947a7" }, "sample_interval_m": 1.0, "interpolation": "bilinear", "smoothing": "none", "gradient_windows_m": [ 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "diagnostic_windows_m": [ 2.0, 3.0 ], "elevation_crs": "EPSG:2154", "elevation_resolution_m": 0.5, "elevation_tiles": [ "data/cache/fr/ign-lidarhd_dtm_E465-N6792_0m5@24LHDGF2-2025-07-23.tif", "data/cache/fr/ign-lidarhd_dtm_E465-N6793_0m5@24LHDGF2-2025-07-23.tif", "data/cache/fr/ign-lidarhd_dtm_E466-N6791_0m5@24LHDGF2-2025-07-23.tif", "data/cache/fr/ign-lidarhd_dtm_E466-N6792_0m5@24LHDGF2-2025-07-23.tif", "data/cache/fr/ign-lidarhd_dtm_E466-N6793_0m5@24LHDGF2-2025-07-23.tif", "data/cache/fr/ign-lidarhd_dtm_E467-N6791_0m5@24LHDGF2-2025-07-23.tif" ], "calculated_at": "2026-09-26T01:03:41+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-no3.osm.pbf", "osm_snapshot": "", "run_id": "fr-no3", "elevation_provider": "IGN LiDAR HD MNT 0.5 m", "elevation_licence": "Licence Ouverte / Open Licence 2.0 (Etalab) \u2014 \u00a9 IGN, LiDAR HD (MNT/MNS), data.geopf.fr; reproduction autoris\u00e9e avec mention de la source et de la date", "elevation_dataset": "LiDAR HD \u2014 MNT (sol) et MNS (surface), 0,50 m (Institut national de l'information g\u00e9ographique et foresti\u00e8re), RGF93 / Lambert-93 EPSG:2154, altitudes IGN69", "elevation_vertical_datum": "IGN69", "elevation_tile_ids": [ "E465-N6792", "E465-N6793", "E466-N6791", "E466-N6792", "E466-N6793", "E467-N6791" ], "elevation_blocks": [ "24LHDGF2@2025-07-23" ], "ign_dalles": [ "LHD_FXX_0465_6793_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0465_6794_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0466_6792_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0466_6793_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0466_6794_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0467_6792_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "24LHDGF2" ], "ign_editions": [ "2025-07-23" ], "ign_dsm_edition": { "LHD_FXX_0465_6793_MNT_O_0M50_LAMB93_IGN69": "2025-07-23", "LHD_FXX_0465_6794_MNT_O_0M50_LAMB93_IGN69": "2025-07-23", "LHD_FXX_0466_6792_MNT_O_0M50_LAMB93_IGN69": "2025-07-23", "LHD_FXX_0466_6793_MNT_O_0M50_LAMB93_IGN69": "2025-07-23", "LHD_FXX_0466_6794_MNT_O_0M50_LAMB93_IGN69": "2025-07-23", "LHD_FXX_0467_6792_MNT_O_0M50_LAMB93_IGN69": "2025-07-23" }, "climb_origin": "named-pass", "structure_own_ways": 13, "carriageway": { "stations": 126, "stations_resolved": 126, "width_median_m": 8.75, "width_p10_m": 7.12, "width_min_m": 6.0, "width_max_m": 12.0, "bounded_share": 0.246, "unbounded_share": 0.754, "confidence_median": 0.0, "width_median_bounded_m": 7.5, "window_m": [ 1512.0, 1537.0 ], "width_at_max25_m": 12.0, "window_stations": 7, "single_track": false, "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule", "status": "ok", "source": "dtm", "station_m": 25.0, "window_station_m": 5.0, "halfwidth_m": 6.0, "step_m": 0.25, "level_tol_m": 0.12, "break_min_m": 0.3, "stations_failed": 0, "hedge_to_hedge": { "stations": 126, "stations_resolved": 126, "width_median_m": 10.5, "width_p10_m": 6.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.476, "unbounded_share": 0.524, "confidence_median": 0.0, "width_median_bounded_m": 9.12, "window_m": [ 1512.0, 1537.0 ], "width_at_max25_m": 12.0, "window_stations": 7, "status": "ok", "source": "dsm", "station_m": 25.0, "window_station_m": 5.0, "halfwidth_m": 6.0, "step_m": 0.25, "level_tol_m": 0.5, "break_min_m": 0.3, "stations_failed": 0 } }, "license": "ODbL-1.0", "license_url": "https://howsteep.org/licensing" }, "area": { "place": "Sill\u00e9-le-Guillaume", "county": "Sarthe", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }